Energy evaluation of the tractor’s power-transmission system

Abstract

The paper examines the motor-transmission installation o f the tractor in the continuous energy interaction o f the internal combustion engine, transmission and the working machine of the tractor. At the same time, the transmitting and protective properties o f the transmission have been singled out, according to which the conformity o f the engine's energy potential and the energy intensity o f the working machine, which is being aggregated with the tractor, is estimated. It is proposed to estimate the energy expenditure fo r dissipation by the amount of energy spent on friction or slippage o f the transmission elements, not at a certain time, but over a period o f time. Generating and damping properties o f the tractor's motor-transmission units are singled out. It is noted that the generating properties characterize the state o f the transmission elements and are not related to the direction o f the energy flow; and the damping properties determined by the inertial, elastic elements o f the transmission are characterized by a decrease in the amplitude o f the variable torque component in the forward energy flow o f the transmission.